To add a new variant you have to redirect to “Edit Variant” Page where the actions on variants are taken. To add a new variant, follow path as follows
Business Profile > Operations > Manage Inventory > Select Product > Edit Variant
The product details will be opened and you can click on “Edit Variant” to edit variants
You will be redirected to Edit variant screen
Click on “Add” button from the button list and a pop up will be opened to enter the details
Fill the requested details in the pop-up in the respective fields and click on “Save” button.
Your new variant will be created for the product